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Rodingite is a metasomatic rock composed of grossular- andradite garnet, calcic pyroxene, vesuvianite, epidote and scapolite. Rodingites are common where mafic rocks are in proximity to 
Rodingite is a metasomatic rock composed of grossular- andradite garnet, calcic pyroxene, vesuvianite, epidote and scapolite. Rodingites are common where mafic rocks are in proximity to serpentinized
Serpentinite is a rock composed predominantly of one or more serpentine group minerals, the name originating from the similarity of the texture of the rock to that of the skin of a snake. Serpentinite has been called ''serpentine'' or ''serp ...
ultramafic rocks. The mafic rocks are altered by high pH, Ca2+ and OH− fluids, which are a byproduct of the serpentinization process, and become rodingites. The mineral content of rodingites is highly variable, their high calcium, low silicon and environment of formation being their defining characteristic. Rodingites are common in ophiolites, serpentinite mélanges, ocean floor peridotites and eclogite massifs. Rodingite was first named from outcrops of the Dun Mountain Ophiolite Belt in the Roding River
The Roding River is a river of the Tasman Region of New Zealand's South Island. It flows generally southwest from its sources in the hills above the city of Nelson, reaching the Wairoa River five kilometres south of Richmond. The rock type R ...
, Nelson, New Zealand.
An obsolete name for rodingite is ''granatite''.
References
Metamorphic rocks {{petrology-stub